﻿package com.mypaper.elem;

public abstract class DataElement {
	public abstract boolean equals(DataElement otherElement);//两个数据是否相等
	public abstract int compareTo(DataElement otherElement);//两个数据比较大小
	public abstract void makeCopy(DataElement otherElement);//复制数据
	public abstract DataElement getCopy();//得到数据的指针
	public abstract DataElement properSlot(DataElement searchItem);//是否存在某数据
	public abstract DataElement properSlotMoveTo(float start, float end, float weight);
	public abstract boolean equalStart(float end);
	public abstract boolean equalEnd(float start);
} 
